Volume buttons on a Xbox controller

While looking at the Microsoft chat adapter you will see five buttons from the left to the right. Game Volume button, Chat Volume button, Mute button, Volume up button and Volume down button. Pressing the button with the little controller symbol will let
you control the game sound volume. The button with the little person symbol will let you control the chat volume. To turn the chat or game sound up or down press the corresponding button and then use the volume up/down to tune the sound to your liking.

I have a pair of x42s, if the volume controls are the same, it is tricky. The volume control on the cord doesn't do anything. I had to do a combination of the master control volume on the adapter(the 2 buttons on the right) and the volume control located
by the power button on the headset. I still haven't found my perfect chat/volume set up though.

There are unfortunately no volume controls for your sound system in the Xbox, so you'll have to use your remote if you want to adjust the volume.

Thanks for your reply.

I would like to control PC volume AND power TV on/off.

It seems the TV button turns RED or GREEN depending on which device the remote will control, no? This seems true for power on/off, channel up/down, mute, and a few other buttons - except for the VOLUME buttons which ALWAYS control the TV volume. A bug?

What is the red/green TV button supposed to indicate, if not "which device is currently controlled"?

We didn't make volume control mapped to the controller because of discoverability and lack of buttons available to use it. We are looking at ways to make it easier to control your volume.